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We analyzed multiple health endpoints in 48 healthy adults before and after exposures to diesel and B75 emissions in an underground mine setting: lung function; lung and systemic inflammation; novel biomarkers of exposure; and oxidative stress were assessed.

RESULTS

B75 reduced respirable diesel particulate matter (rDPM) by 20%. Lung function declined significantly more following exposure to diesel emissions. Lung inflammatory cells along with sputum and plasma inflammatory mediators increased significantly to similar levels with both exposures. Urinary 8-hydroxydeoxyguanosine (8-OHdG), a marker of oxidative stress, was not significantly changed following either exposure.

CONCLUSIONS

Use of B75 lowered rDPM exposure and some associated acute health effects, although lung and systemic inflammation were not reduced compared with diesel use.

A series of laboratory tests were conducted to assess the effects of Fe-containing fuel additives on aerosols emitted by a diesel engine retrofitted with a sintered metal filter (SMF) system. Emission measurements performed upstream and downstream of...

Over the past decade, soy biodiesel (BD) has become a first alternative energy source that is economically viable and meets requirements of the Clean Air Act. Due to lower mass emissions and reduced hazardous compounds compared to diesel combustion e...

United States. Agency for Toxic Substances and Disease Registry. Division of Toxicology and Human Health Sciences.

Published:

11/1/13

Description:

In 2010, the Agency for Toxic Substances and Disease Registry—known as ATSDR—introduced the National Toxic Substance Incidents Program as a comprehensive program for surveillance of hazardous chemical incidents. The program’s purpose is to prot...

In this study, we evaluated the ambient diesel particulate matter (DPM) concentrations (at the intakes and exhausts of the mine) as the entire vehicle fleet of a stone mine switched from using 35% biodiesel to using a water emulsified fuel (PuriNOx)....

Altering the fuel source from petroleum-based ultralow sulfur diesel to biodiesel and its blends is considered by many to be a sustainable choice for controlling exposures to particulate material. As the exhaust of biodiesel/diesel blends is composed...